^
Wow, that's a jackpot item.
Too bad there aren't many items to further convert Vitality to Acid, I can think of Deathguard Blade, but that's not a great item for an RE build.

Probably still worth it though with that offhand, 26/16 RE with all the RE flat damage skill modifiers would rip through any boss in seconds.

Something I found:
Only a single rare affix but it has a lot of flat damage and some attack speed and good % damage.
Since Fire and Lightning damage types are somewhat linked it might be useful in some build.
Doubt I'll ever make use of it though since I hate melee Demos with a passion.

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__________________"They were completely unbalanced—in all the best ways!"